Collaborative filtering

Podium

Lowest RMSE wins. Student groups and professor references compete together.

1

ONN

0.785 RMSE

2

Group 16

0.793 RMSE

3

La piscine

0.794 RMSE

RMSE over time · lower is better.

Drag to zoom; use the toolbar to pan or reset. Dots are evaluations, not GitHub activity. Failed runs leave gaps.

Scores use hidden evaluation ratings; the input contains train + test. Accuracy is the percentage of exactly predicted ratings. These measurements support your analysis; code itself is not graded.

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Rank	Group ↕	RMSE ↑	Accuracy (%) ↕	Time (s) ↕	Status	Source
1	ONN2026 group	0.785	0.11	696.99	Success	Repository98f09d5c
2	Group 162026 group	0.793	0.28	317.98	Success	Repositoryf4ef4bd2
3	La piscine2026 group	0.794	0.03	281.44	Success	Repository143fbb0e
4	SnapCat2026 group	0.795	0.00	32.09	Success	Repository77fce7c3
5	Breaking Bias2026 group	0.796	0.16	45.39	Success	Repository44934510
6	HBA2026 group	0.799	0.16	217.43	Success	Repositoryccce2d56
7	AcceleratedAerodynamicsYaris2026 group	0.799	0.05	23.23	Success	Repository83fb7176
8	Group 132026 group	0.803	0.21	20.07	Success	Repository20181806
9	rEcommeNderS2026 group	0.805	0.10	261.64	Success	Repositoryfa0ed35e
10	LHOOQ2026 group	0.806	0.17	97.74	Success	Repositoryd11ed80d
11	Le Groupe2026 group	0.808	0.00	180.06	Success	Repositoryead19fba
12	altf42026 group	0.813	0.07	108.09	Success	Repository386ed29e
13	Le groupe du fond : LiS2026 group	0.815	0.22	111.94	Success	Repositorycbdd3e2d
14	BestOf 2025 · 1Reference	0.816	0.00	485.03	Success	Frozen referenceab53d900
15	umap reborn2026 group	0.816	0.17	10.30	Success	Repository53eb3147
16	Group 312026 group	0.818	0.35	73.82	Success	Repository71b9fc84
17	BANs2026 group	0.824	0.09	64.67	Success	Repository3b683043
18	Group2026 group	0.830	0.00	42.43	Success	Repositoryc766e996
19	BestOf 2025 · 2Reference	0.830	0.02	5.18	Success	Frozen reference55d5e886
20	Blocus2026 group	0.833	0.09	4.53	Success	Repositorybe93cad8
21	DauDau2026 group	0.833	0.14	69.95	Success	Repository28808e9a
22	blue2026 group	0.839	0.11	5.53	Success	Repositorycbdc587e
23	Rejoignez@Alexis@Hadrien2026 group	0.841	0.10	8.14	Success	Repository99f0c6ea
24	Group 282026 group	0.843	0.04	322.34	Success	Repository7a218cd5
25	ocaml2026 group	0.846	0.04	15.30	Success	Repository28f3b0a2
26	Cold Start Club2026 group	0.846	0.16	4.98	Success	Repositoryff7a1fbb
27	WorksOnMyMachine2026 group	0.847	0.10	1.58	Success	Repositoryd96878d4
28	ACA2026 group	0.848	0.06	52.69	Success	Repository2ee3f127
29	Group 42026 group	0.848	0.00	112.15	Success	Repositoryd0c4cef2
30	AKE2026 group	0.854	0.00	10.55	Success	Repository1915adfa
31	The Outliers2026 group	0.855	0.12	2.33	Success	Repository3e48b680
32	BestOf 2024 · 1Reference	0.855	0.00	154.73	Success	Frozen reference1204cccc
33	force-push2026 group	0.857	0.08	4.73	Success	Repositoryb5d550ff
34	data-doodlers2026 group	0.858	0.06	22.21	Success	Repository129d8fb5
35	Antoine2026 group	0.859	0.10	2.03	Success	Repository255e0811
36	OT dream team2026 group	0.859	0.12	12.00	Success	Repository39238336
37	Group 372026 group	0.860	0.06	38.64	Success	Repository600270d1
38	BestOf 2023 · 2Reference	0.860	26.13	86.78	Success	Frozen reference2fa4d93a
39	TinderCEOs2026 group	0.875	0.01	7.54	Success	Repository08a25dd9
40	averageReference	1.037	0.00	1.23	Success	Frozen reference
41	randomReference	1.822	14.18	0.92	Success	Frozen reference
—	1p2v2026 group	—	—	—	Error !execution: RuntimeError: Process exited with code 1. Ratings loading... Ratings Loaded. Traceback (most recent call last): File "/work/generate.py", line 29, in <module> knn = SimilarityFusion(**bestParams).fit(trainData, movieData) ^^^^^^^^^ NameError: name 'trainData' is not defined	Repository2f53f56f
—	BestOf 2023 · 1Reference	—	—	—	Error !execution: RuntimeError: Process exited with code 1. Ratings loading... Ratings Loaded. Traceback (most recent call last): File "/work/generate.py", line 38, in <module> model.load_best_models() ~~~~~~~~~~~~~~~~~~~~~~^^ File "/work/algorithms/folded_deep_matrix_factorization_imprv.py", line 327, in load_best_models m.load_state_dict(torch.load(abs_file_path)) ~~~~~~~~~~^^^^^^^^^^^^^^^ File "/env/lib/python3.13/site-packages/torch/serialization.py", line 1521, in load return _load( opened_zipfile, ...<3 lines>... **pickle_load_args, ) File "/env/lib/python3.13/site-packages/torch/serialization.py", line 2119, in _load result = unpickler.load() File "/env/lib/python3.13/site-packages/torch/_weights_only_unpickler.py", line 532, in load self.append(self.persistent_load(pid)) ~~~~~~~~~~~~~~~~~~~~^^^^^ File "/env/lib/python3.13/site-packages/torch/serialization.py", line 2083, in persistent_load typed_storage = load_tensor( dtype, nbytes, key, _maybe_decode_ascii(location) ) File "/env/lib/python3.13/site-packages/torch/serialization.py", line 2049, in load_tensor wrap_storage = restore_location(storage, location) File "/env/lib/python3.13/site-packages/torch/serialization.py", line 698, in default_restore_location result = fn(storage, location) File "/env/lib/python3.13/site-packages/torch/serialization.py", line 636, in _deserialize device = _validate_device(location, backend_name) File "/env/lib/python3.13/site-packages/torch/serialization.py", line 605, in _validate_device raise RuntimeError( ...<5 lines>... ) RuntimeError: Attempting to deserialize object on a CUDA device but torch.cuda.is_available() is False. If you are running on a CPU-only machine, please use torch.load with map_location=torch.device('cpu') to map your storages to the CPU.	Frozen reference8b6fb772
—	BestOf 2024 · 2Reference	—	—	—	Error !execution: RuntimeError: Process exited with code 1. /work/generate.py:57: DeprecationWarning: __array_wrap__ must accept context and return_scalar arguments (positionally) in the future. (Deprecated NumPy 2.0) ratings = np.where(~np.isnan(matrix[i]))[0] Ratings loading... Ratings Loaded. (array([False, True]), array([2974604, 63196])) Traceback (most recent call last): File "/work/generate.py", line 121, in <module> previous_pred = torch.zeros(ratings_full.shape).to(device) File "/env/lib/python3.13/site-packages/torch/cuda/__init__.py", line 412, in _lazy_init torch._C._cuda_init() ~~~~~~~~~~~~~~~~~~~^^ RuntimeError: No CUDA GPUs are available	Frozen reference7869cd93
—	Gengis GAN2026 group	—	—	—	Error !execution: RuntimeError: Process exited with code 1. WARNING:root:Unknown config key: n_iter. Ignoring. 2026-10-22 05:22:34 | INFO | <module> | Ratings loading... INFO:main:Ratings loading... 2026-10-22 05:22:34 | INFO | <module> | Ratings Loaded. INFO:main:Ratings Loaded. 2026-10-22 05:22:34 | INFO | observed_entries | Users 610 | Items 4980 | Observed entries 63196 INFO:main:Users 610 | Items 4980 | Observed entries 63196 Traceback (most recent call last): File "/work/generate.py", line 130, in <module> test_table = np.load("ratings_test.npy") File "/env/lib/python3.13/site-packages/numpy/lib/_npyio_impl.py", line 454, in load fid = stack.enter_context(open(os.fspath(file), "rb")) ~~~~^^^^^^^^^^^^^^^^^^^^^^^ FileNotFoundError: [Errno 2] No such file or directory: 'ratings_test.npy'	Repositorya056f091
—	Group 272026 group	—	—	—	Pending	Repository pending
—	Group 72026 group	—	—	—	Error !execution: RuntimeError: Process exited with code 1. Ratings loading... Ratings Loaded. Traceback (most recent call last): File "/work/generate.py", line 26, in <module> table = m.best_method(table) File "/work/methods.py", line 551, in best_method R, names = validate_input(R, names) ~~~~~~~~~~~~~~^^^^^^^^^^ File "/work/methods.py", line 452, in validate_input raise FileNotFoundError("Put the professor's corrected namesngenre2.npy " "beside generate.py or in data/. The old metadata is not used.") FileNotFoundError: Put the professor's corrected namesngenre2.npy beside generate.py or in data/. The old metadata is not used.	Repository4fce1315
—	MassSurveillanceReadyFiltering2026 group	—	—	—	Error !execution: RuntimeError: Process exited with code 1. Traceback (most recent call last): File "/work/generate.py", line 11, in <module> from cf.cli import ConvertParametersAction File "/work/cf/__init__.py", line 14, in <module> from .registry import MODELS, DEFAULT_PARAMS, GRIDS, build_model File "/work/cf/registry.py", line 28, in <module> "lightgcl": LightGCLRecommender, ^^^^^^^^^^^^^^^^^^^ NameError: name 'LightGCLRecommender' is not defined. Did you mean: 'LightGCNRecommender'?	Repositoryc0debea4
—	Matcha2026 group	—	—	—	Pending	Repository pending
—	UsualGreenSundayEnjoyer2026 group	—	—	—	Error !execution: RuntimeError: Process exited with code 1. Traceback (most recent call last): File "/work/generate.py", line 6, in <module> parser = argparse.ArgumentParser(description='Generate a completed ratings table.') ^^^^^^^^ NameError: name 'argparse' is not defined. Did you forget to import 'argparse'?	Repository2363e66b

No matching group.